| X射线脉冲星自主导航的光子到达时间转换 |
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| 引用本文： | 费保俊,孙维瑾,潘高田,季诚响.X射线脉冲星自主导航的光子到达时间转换[J].空间科学学报,2010,30(1). |
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| 作者姓名： | 费保俊 孙维瑾 潘高田 季诚响 |
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| 作者单位： | 1. 装甲兵工程学院基础部,北京,100072
2. 装甲兵工程学院指挥部 |
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| 摘 要： | 根据广义相对论的后牛顿近似时空理论,在忽略太阳系天体自转和扁率的情况下,详细推导出X射线脉冲星自主导航中,光子到达观测航天器和太阳系质心的时间差值,它是对现行公式的修正.导出了质心坐标时与航天器固有时的变换关系,根据这一关系,建议在脉冲星导航的工程设计中可以仿照GPS,将航天器携带时钟作频率调整,从而有利于工程计算.
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| 关 键 词： | X射线脉冲星自主导航 光子到达时间 相对论天体力学 |
Transformation of Photon Time of Arrival in XNAV |
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| FEI Baojun,SUN Weijin,PAN Gaotian,JI Chengxiang.Transformation of Photon Time of Arrival in XNAV[J].Chinese Journal of Space Science,2010,30(1). |
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| Authors: | FEI Baojun SUN Weijin PAN Gaotian JI Chengxiang |
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| Institution: | Department of Foundation/a>;Academy of Armored Force Engineering/a>;Beijing 100072;Department of Command/a>;Academy of Armored Force Engineering |
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| Abstract: | The navigating method for XNAV(X-ray pulsar-based Navigation) is similar the one of the Differential GPS(DGPS).In order to position and navigate the spacecraft(or satellite),the two Time of Arrival(TOA) from one X-ray pulsar to both the spacecraft and the solar system barycenter are demanded respectively.The difference between the two TOA is generally called the transformation equation of time.But the existent transformation equation of time is not good enough.In this paper,improvements have been made on so... |
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| Keywords: | XNAV (X-ray pulsar-based Navigation) Photon time of arrival Relativistic celestial mechanics |
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